﻿using System;
using System.Data;
using System.Text;
using System.Data.OleDb;
using Maticsoft.DBUtility;//Please add references
namespace Ajax.DAL
{
	/// <summary>
	/// 数据访问类:References
	/// </summary>
	public partial class References
	{
		public References()
		{ }
		#region  Method

		/// <summary>
		/// 得到最大ID
		/// </summary>
		public int GetMaxId()
		{
			string sql = "select max(id) as id from [References]";
			object obj = DataOperate.ExecuteScalar(PubConstant.ConnectionString, sql, null);
			if (obj == null)
			{
				return 0;
			}
			else
			{
				return Convert.ToInt32(obj);
			}
		}

		/// <summary>
		/// 是否存在该记录
		/// </summary>
		public bool Exists(int ID)
		{
			StringBuilder strSql = new StringBuilder();
			strSql.Append("select count(1) from [References]");
			strSql.Append(" where ID=@ID");
			OleDbParameter[] parameters = {
					new OleDbParameter("@ID", OleDbType.Integer,4)
			};
			parameters[0].Value = ID;

			return DbHelperOleDb.Exists(strSql.ToString(), parameters);
		}


		/// <summary>
		/// 增加一条数据
		/// </summary>
		public bool Add(Ajax.Model.References model)
		{
			StringBuilder strSql = new StringBuilder();
			strSql.Append("insert into [References](");
			strSql.Append("RYear,ProjectName,City,Description)");
			strSql.Append(" values (");
			strSql.Append("@RYear,@ProjectName,@City,@Description)");
			OleDbParameter[] parameters = {
					new OleDbParameter("@RYear", OleDbType.Integer),
					new OleDbParameter("@ProjectName", OleDbType.VarChar,255),
					new OleDbParameter("@City", OleDbType.VarChar,255),
					new OleDbParameter("@Description", OleDbType.VarChar,0)};
			parameters[0].Value = model.RYear;
			parameters[1].Value = model.ProjectName;
			parameters[2].Value = model.City;
			parameters[3].Value = model.Description;

			int rows = DbHelperOleDb.ExecuteSql(strSql.ToString(), parameters);
			if (rows > 0)
			{
				return true;
			}
			else
			{
				return false;
			}
		}
		/// <summary>
		/// 更新一条数据
		/// </summary>
		public bool Update(Ajax.Model.References model)
		{
			StringBuilder strSql = new StringBuilder();
			strSql.Append("update [References] set ");
			strSql.Append("RYear=@RYear,");
			strSql.Append("ProjectName=@ProjectName,");
			strSql.Append("City=@City,");
			strSql.Append("Description=@Description");
			strSql.Append(" where ID=@ID");
			OleDbParameter[] parameters = {
					new OleDbParameter("@RYear", OleDbType.Integer),
					new OleDbParameter("@ProjectName", OleDbType.VarChar,255),
					new OleDbParameter("@City", OleDbType.VarChar,255),
					new OleDbParameter("@Description", OleDbType.VarChar,0),
					new OleDbParameter("@ID", OleDbType.Integer,4)};
			parameters[0].Value = model.RYear;
			parameters[1].Value = model.ProjectName;
			parameters[2].Value = model.City;
			parameters[3].Value = model.Description;
			parameters[4].Value = model.ID;

			int rows = DbHelperOleDb.ExecuteSql(strSql.ToString(), parameters);
			if (rows > 0)
			{
				return true;
			}
			else
			{
				return false;
			}
		}

		/// <summary>
		/// 删除一条数据
		/// </summary>
		public bool Delete(int ID)
		{

			StringBuilder strSql = new StringBuilder();
			strSql.Append("delete from [References] ");
			strSql.Append(" where ID=@ID");
			OleDbParameter[] parameters = {
					new OleDbParameter("@ID", OleDbType.Integer,4)
			};
			parameters[0].Value = ID;

			int rows = DbHelperOleDb.ExecuteSql(strSql.ToString(), parameters);
			if (rows > 0)
			{
				return true;
			}
			else
			{
				return false;
			}
		}
		/// <summary>
		/// 批量删除数据
		/// </summary>
		public bool DeleteList(string IDlist)
		{
			StringBuilder strSql = new StringBuilder();
			strSql.Append("delete from [References] ");
			strSql.Append(" where ID in (" + IDlist + ")  ");
			int rows = DbHelperOleDb.ExecuteSql(strSql.ToString());
			if (rows > 0)
			{
				return true;
			}
			else
			{
				return false;
			}
		}


		/// <summary>
		/// 得到一个对象实体
		/// </summary>
		public Ajax.Model.References GetModel(int ID)
		{

			StringBuilder strSql = new StringBuilder();
			strSql.Append("select ID,RYear,ProjectName,City,Description from [References] ");
			strSql.Append(" where ID=@ID");
			OleDbParameter[] parameters = {
					new OleDbParameter("@ID", OleDbType.Integer,4)
			};
			parameters[0].Value = ID;

			Ajax.Model.References model = new Ajax.Model.References();
			DataSet ds = DbHelperOleDb.Query(strSql.ToString(), parameters);
			if (ds.Tables[0].Rows.Count > 0)
			{
				if (ds.Tables[0].Rows[0]["ID"] != null && ds.Tables[0].Rows[0]["ID"].ToString() != "")
				{
					model.ID = int.Parse(ds.Tables[0].Rows[0]["ID"].ToString());
				}
				if (ds.Tables[0].Rows[0]["RYear"] != null && ds.Tables[0].Rows[0]["RYear"].ToString() != "")
				{
					model.RYear = int.Parse(ds.Tables[0].Rows[0]["RYear"].ToString());
				}
				if (ds.Tables[0].Rows[0]["ProjectName"] != null && ds.Tables[0].Rows[0]["ProjectName"].ToString() != "")
				{
					model.ProjectName = ds.Tables[0].Rows[0]["ProjectName"].ToString();
				}
				if (ds.Tables[0].Rows[0]["City"] != null && ds.Tables[0].Rows[0]["City"].ToString() != "")
				{
					model.City = ds.Tables[0].Rows[0]["City"].ToString();
				}
				if (ds.Tables[0].Rows[0]["Description"] != null && ds.Tables[0].Rows[0]["Description"].ToString() != "")
				{
					model.Description = ds.Tables[0].Rows[0]["Description"].ToString();
				}
				return model;
			}
			else
			{
				return null;
			}
		}

		/// <summary>
		/// 获得数据列表
		/// </summary>
		public DataSet GetList(string strWhere)
		{
			StringBuilder strSql = new StringBuilder();
			strSql.Append("select ID,RYear,ProjectName,City,Description ");
			strSql.Append(" FROM [References] ");
			if (strWhere.Trim() != "")
			{
				strSql.Append(" where " + strWhere);
			}
			return DbHelperOleDb.Query(strSql.ToString());
		}

		/// <summary>
		/// 获取记录总数
		/// </summary>
		public int GetRecordCount(string strWhere)
		{
			StringBuilder strSql = new StringBuilder();
			strSql.Append("select count(1) FROM References ");
			if (strWhere.Trim() != "")
			{
				strSql.Append(" where " + strWhere);
			}
			object obj = DbHelperSQL.GetSingle(strSql.ToString());
			if (obj == null)
			{
				return 0;
			}
			else
			{
				return Convert.ToInt32(obj);
			}
		}
		/// <summary>
		/// 分页获取数据列表
		/// </summary>
		public DataSet GetListByPage(string strWhere, string orderby, int startIndex, int endIndex)
		{
			StringBuilder strSql = new StringBuilder();
			strSql.Append("SELECT * FROM ( ");
			strSql.Append(" SELECT ROW_NUMBER() OVER (");
			if (!string.IsNullOrEmpty(orderby.Trim()))
			{
				strSql.Append("order by T." + orderby);
			}
			else
			{
				strSql.Append("order by T.ID desc");
			}
			strSql.Append(")AS Row, T.*  from [References] T ");
			if (!string.IsNullOrEmpty(strWhere.Trim()))
			{
				strSql.Append(" WHERE " + strWhere);
			}
			strSql.Append(" ) TT");
			strSql.AppendFormat(" WHERE TT.Row between {0} and {1}", startIndex, endIndex);
			return DbHelperOleDb.Query(strSql.ToString());
		}

		/*
		/// <summary>
		/// 分页获取数据列表
		/// </summary>
		public DataSet GetList(int PageSize,int PageIndex,string strWhere)
		{
			OleDbParameter[] parameters = {
					new OleDbParameter("@tblName", OleDbType.VarChar, 255),
					new OleDbParameter("@fldName", OleDbType.VarChar, 255),
					new OleDbParameter("@PageSize", OleDbType.Integer),
					new OleDbParameter("@PageIndex", OleDbType.Integer),
					new OleDbParameter("@IsReCount", OleDbType.Boolean),
					new OleDbParameter("@OrderType", OleDbType.Boolean),
					new OleDbParameter("@strWhere", OleDbType.VarChar,1000),
					};
			parameters[0].Value = "References";
			parameters[1].Value = "ID";
			parameters[2].Value = PageSize;
			parameters[3].Value = PageIndex;
			parameters[4].Value = 0;
			parameters[5].Value = 0;
			parameters[6].Value = strWhere;	
			return DbHelperOleDb.RunProcedure("UP_GetRecordByPage",parameters,"ds");
		}*/

		#endregion  Method
	}
}

